murphy et au



' ET AL. oet. 23, 192s. F' K' MURPHY Re. 17,110

FLUID OPERABLE LUBRICATOR AND FEEDER FOR ENGINES Reissued Oct. 23,1928.l i

UNITED STATESv PATENT OFFICE.

FEED x. 'MURPHY AND EAYW. RET'rERER, or 1NnIANAroL1s'1NDIANA. i

ELUID-OPERABLE LUBRicAfroR AND FEEDERI Eon ENernvEs;v

i `This invention relates to a force feed lubri-l cator and distributorJfor locomotives and statlonary engines.

The cl'if object of the invention is to pro vide a positive supplyoflubricant toan engine of the stationary or locomotive type only whenthe moving parts-thereof are moving `under the influence of fluidpressure that is doing work.

`The chief feature of the invention consists in the operation of aforced feed lubricator by `the constantly applied pressure employed inthe prime mover and associating therewitha distributor of a novelcharacter also operable by Huid pressure employed in i the prime .mover`In the latter instance the distributor `is operable by the differentialdiaphragm pressures, the larger diaphragm being associatedwith the lowerpressure-which is intermittently applied. c

The full nature of the invention willbe understood from the accompanyingdrawings and the following". description and'claims:

y In thedrawings Fig. 1 is afront view of a `locomotive showing theinvention associated therewith, theseveralparts of the.v piping be- "ingshown diagrammatically. Fig.'2 is a side elevational view of the same'.Fig.y3'isan enlarged central sectional ,view of the lubrica-v tor and`the power connection therefor. Fig. 4 is a sectional view taken on line4 4 of Fig. 3 of the lubricator and in the direction of the arrows. Figfis a sectional view taken on 'line 5-5 ofFig. 3 and in the direction ofthe arrowsand of the same mechanism shown in Fig. 4,l to` wit, the powerconnection and the powerunit. Fig.6 isacentral sectional view throughthedistributor.

`In th drawings 11 indicates a locomotive having a boiler l2, cylinders13a and 13 and supply lines 14" and 14h.v .Associated with eachslllpplyline is a distributor herein indicated respectivelyby the numerals 15ELand 15b.

.. Eachdistributor is connected by a conduit .45 16 to the source ofhigh pressure steam, to wit, the conduit 14. A conduit 17 is connectedto "the distributor at one end andto the engine cylinder. supply at theother, thus subjecting the distributorto intermittent pressure; A

: conduit 18 isconnected tothelubricatorindicated generallyby thenumeral 19. Said con- `duit 18 `constitutes a' high pressure lubricant isupply line and serves to supplyoil from thel `lubricator to thedistributor 15, A line 20 BB fconnects the distributor tothe snipplyVline con Application fior y nectedl totheeylinder and thu-s the lines 16and 20 `are connected through the distributor andform a by-pass leadingfrom and thence to the supply line 14 of the engine.V A f `Referencewill now be had to Fig, where in,` the details of the distributor deviceare shown. The'l body portion indicated generally byA the numeral 15includes a pair ot transverse communicating channels 21 and 22. Thechannel 21 communicates at one end with conduit land at the other endwith the conduit 20. `Aloushing 23 has a tapered outlet or passage`24discharging into said passage 21. 'The channel 22 receives a sleeve25which terminates hat the .end opposite from the end communicating withthe conduit 21 in a valve seat 26; A valve 27 is associated therewithand carries a stem 28 for aligning the coil spring f 29 and abuttinganadjustable stop 30.*'. The valve 27 also is extended `and carries'a'body portion 31`that has a predeterminedtit within `said sleeve 25..`A channel 32 communicates with conduit 18 at one end and thus the lulbricator supplied with lubricant under high pressure. lThecap 33 carriedby the distributor 15 includes a valve chamber 34 vand this valvechamber communicates with the conduitl 21when" the valve l27 is removedfrom its vseat 26 `through the predetermined fit between the stem 31 andthe sleeve 25. i 1 i The opposite end of th body 15 includes a chamber35 in which is secured'a. diaphragm turn supporting'another diaphragm38, likewise retained in position within a chamber`39.

' An adjustable stop 40 is providedv forthe dia- 36 retained in positionby a retainer l37,' in i engine cylinder, Vand .preferably the frontend,I

-and this occurs intermittently, pressure 1s ap- 4 pliedto chamber 39.Diaphragm ,3,8 moves toward'the left with abutment 41.v This engagesdiaphragm 36 and moves the same to enga-ge the end of thestem 31 andunseat the valve 27 from its seat 26t This permits the lubricant`supplied by line 18 under high pressure, to pass from thevalve chamber34 to the paS- sage 21.l

High pressure'stearn` also ispassled through the body 15 from conduit 16to conduit 20.

Through the ynozzle arrangement, andjet action, thesteam carries with ita predeterg mined: amount of oil determinable by the fit and travel ofstern 3l in bushing 22 v and by the regulated opening of the valve, thelatter,

being adjusted through abutment 30. .When the steam pressure suppliedlto thechamber 39 is released by being exhausted tothe at-V mosphere orpassed into a low pressure cylinder or lto accessories as is the commonpracl tice, thediaphragm 36 becomes effective and returns diaphragm 38to its original position.

. Said diaphragms are limited in their travel 4to theji'ightgby'abutment 41and the adjust- V ableI stop 40. At the same time, the.spring 29rh`as seated the valve 27 and the lubricant supply isdiscontinued. -Upon failure of the lines 18 to the distributorpreviously lde-V scribed. Said lubricator includes aVA bodyportionindicated.generally by the numeral 19, containing a chamber50,`in which is rotatably supported a shaft 1 which carries a wheel. 52provided with Vturbine vanes or blades 53 upon the. periphery or sidethereof.

' vA nozzle 54 is connected byv line`55 to the source of high pressuresteam, toA wit, the supply pipe. or conduit'll. T he steam, after enfgaging, .the blades and :ausing the turbine Wheel to rotate, passesoutwardly and; eX-

` vhausts through the port or passage 56;y This connected to the exhaustpipe of the en-v gine or the same maybe connected to a low pressure*cylinder, atmosphere, or togaccessories as is customary'practice. v a

The lubricator housing 19 includes apartition''t which .forms a chamber5'8therein.

The housing 19 includesor supportsareser- .voir 59 which-,communicatesthrough.. con- Vduit 60 and a pump mechanism with' the high v.pressurecheck protected lubricantl supplyA lines 18.

The pump mechanism comprises a sleeved vcylinderl `61 slidablysupporting a piston 62 carried by a piston rod 63. Saidfpiston rodterminates 'in a yoke 65 which pivotallysupports at 66 a crank arm'whichl hase-@ira cular-opening 68 adapted to receiveafcircular cam 69-eccentrically positioned with respect f to the shaft vShaft 51.-

axis and which is'carried l by the Rotation by the Shaft, 515i" theeentfie and cran-k mechanism` reciprocates thefpump piston 62 to4forcethe lubricant from the supply-line 60 connectedto the reservoirintothe high pressure lines 18leadingto the distributor.A It is to beunderstoodthat these lines the pumpv dischargel and the conduits 18 toApreventreturnl flow of Vthe oil upon the ref turn stroke of thepiston'. A supply controlling check valve may be provided to preventreturn to -thefrese'rvoir ofthe supply upon the power stroke ofthe pumplpiston, also check valve 70 in passage 71 acts as a relief valve, f

Fromfthe foregoing it will be noted "that the lubricaltor anddistributordevices are so larranged that the high pressures are allcontained within enclosed casings and the lubri cator anddistributorparts are what may be termed Vdirectly connected together, therebyveliminating the necessity of stuffing boxes and `the lik-e heretoforerequired.

to one of said pressure sources for-reciprocating said crank.

2. In a lubricating system for fluido'perable l engines, the combinationwith a'source of high pressure fluid, and a source` o f jlow pressurefluid, of apressure lubricatorincludingalubricantpump piston-and a crankconstruction for Vreciprocating said piston and mechanically connectedtherewith, a distributor connected j to' the lubricator andthehiglipr'essure fluid source 'including means differentially' sub-Vjected to both fluid sources,y a fluid operable turbine connected to oneof said fluid pressure .sources,;andmeans connecting the turbine tov thecrank fortranslating rotationalmovement of the former in'toAreciprocating movement of -the latter.4 f

3. In a'V lubricating: system for fluidr operable engines,thejcombination with asource of high pressure vfluid and a sourceoflower pressure fluid, of; apr'ess'uielubricator including aVreciprocating plunger., a fluidoperable turbine therefor, a crank 'and'eccentric connection between said turbine and plunger, and a distributorIconnected to the lubricator and the high pressure fluid sourceincluding means differentially subjected tofboth fluid pressure sources.

4. In a lubricating systemfor fluid oper# able jengines, thecombinationwith a source `ofhigh pressure fluid` and a source of lower pressureHuid, of apressure lubrlcator, a Huid operable turbine therefor, and'adistributor connected to the lubricator and thehigh pres-k surelfiuidsource in cludingmeans differential# v v ly, subjected to vbothfluid pressure sources. vcontain a .check-valve 72; interposed between5', Inalubriclating system the combination of a'valve, areciprocablestein therefor, a pas-f for fluid opersage controlled by the valve andsubstantially occupied by the stem, a supply chamber communicating Withone end of the passage by Way of the valve, a restricted fluid pressuresupplying passage communicating With the other end of said firstmentioned passage, and reciprocable .differential pressure operablemeans for actuating said valve.

6. In a lubricating system the combination of a valve, a reciproeablestem therefor, a passage controlled by the valve and substantiallyoccupiedby the stem, a supply chamber com l municating with one end ofthe passage by Way of the valve, a restricted fluid pressure supplyingpassage communicating with the other end of' said first mentionedpassage, reciprocable differential pressure means in axial alignmentWith said valve for actuating Y the same, and adjustable stops atopposite ends of the stein' and reciprocable means for limitingreciprocablemovement in opposite directions.

7. In a lubricating system for a fluid operable device,lthe combinationof a sourceof. constant fluidpressure, a source of intermittent pressurefluid, a fluid operable lubricator for supplying lubricant underpressure, a distributor to atomize the pressure vsupplied lubricant forsaid .device connected to the lubricator, and vthe constant pressurefluid` source, and to said device, and means sub- ]ected to saidConstant pressure fluid vsource Vand intermittently to the intermittentpressurel Source for controlling the lubricant supplyi y i In Witnesswhereof, We have hereunto af- Y fixed your signatures.

i FRED K. MURPHY.

RAY W. RETTERER.

